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Finding the Fourth Proportional to 15,824.94, 21,838.95 and 8,750.94

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Solution

The fourth proportional to 15,824.94, 21,838.95 and 8,750.94 is: 12,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.94 : 21,838.95 = 8,750.94 : x
  2. Step 2: Convert to fraction form
    15,824.94/21,838.95 = 8,750.94/x
  3. Step 3: Cross multiply
    15,824.94x = 21,838.95 × 8,750.94
  4. Step 4: Simplify right side
    15,824.94x = 191,111,341.11
  5. Step 5: Solve for x
    x = 191,111,341.11/15,824.94
  6. Step 6: Final answer
    x = 12,076.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.